Pith Number

pith:EJ3UGR2P

pith:2017:EJ3UGR2PN2E6ECFIX3JUX6RKEF

not attested not anchored not stored refs pending

A Close-up View of the Young Circumbinary Disk HD 142527

A. Isella, C. Grady, E. Weaver, J. Carpenter, L. Perez, L. Ricci, Y. Boehler

arxiv:1704.00787 v1 · 2017-04-03 · astro-ph.EP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EJ3UGR2PN2E6ECFIX3JUX6RKEF}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:44:51.214834Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

227743474f6e89e208a8bed34bfa2a217985ccefe352c0601d33833f2372deb5

Aliases

arxiv: 1704.00787 · arxiv_version: 1704.00787v1 · doi: 10.48550/arxiv.1704.00787 · pith_short_12: EJ3UGR2PN2E6 · pith_short_16: EJ3UGR2PN2E6ECFI · pith_short_8: EJ3UGR2P

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/EJ3UGR2PN2E6ECFIX3JUX6RKEF \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 227743474f6e89e208a8bed34bfa2a217985ccefe352c0601d33833f2372deb5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c2723a4e087802f98253ee3d39bb891289cc901d14375f6201a57dd6119063b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2017-04-03T20:01:28Z",
    "title_canon_sha256": "e25e2aaa955766b739940f2d0305319cf5b442645f152a245d0dc705a09a0431"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.00787",
    "kind": "arxiv",
    "version": 1
  }
}